Sources and shareware game data:
https://www.libsdl.org/projects/quake/

sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install multiarch-support
sudo apt-get install gcc-multilib
sudo apt-get install libc6-dev-i386
sudo apt-get install libsdl1.2-dev:i386
sudo apt-get install autotools-dev
sudo apt-get install automake
CFLAGS="-m32 -O3 -fcommon" LDFLAGS=-m32 ./configure --target=i386 --host=i386 --disable-sdltest
make
./sdlquake -cachedir . -nocdaudio
./sdlquake -nocdaudio -cachedir . -winsize 512 512 -fullscreen
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sudo apt-get install libsdl1.2-dev
CFLAGS="-g -ggdb -O0 -fcommon" ./configure --host=arm --disable-sdltest
make
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sudo apt-get install libforms-dev libforms-doc libforms-bin libforms2
CFLAGS="-g -ggdb -O0" ./configure --disable-sdltest
CFLAGS="-fsigned-char -g -ggdb -O0" ./configure --disable-sdltest
./doom -3 -grabmouse
